Home / 75,081.90-103,636.08-43,271.98

Finding the Fourth Proportional to 75,081.90, 103,636.08 and 43,271.98

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Solution

The fourth proportional to 75,081.90, 103,636.08 and 43,271.98 is: 59,728.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,081.90 : 103,636.08 = 43,271.98 : x
  2. Step 2: Convert to fraction form
    75,081.90/103,636.08 = 43,271.98/x
  3. Step 3: Cross multiply
    75,081.90x = 103,636.08 × 43,271.98
  4. Step 4: Simplify right side
    75,081.90x = 4,484,538,381.04
  5. Step 5: Solve for x
    x = 4,484,538,381.04/75,081.90
  6. Step 6: Final answer
    x = 59,728.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.